Answer:
D. opportunity cost
Explanation:
Opportunity cost is the foregone benefit as a result of making a particular choice. It is the value of the next best alternative. For example, if a student opts has $10 and buys a pen, then he cannot use that money to buy anything else. Suppose the student needed a book that cost the same amount, the book is the opportunity cost.
Opportunity cost arises due to the scarcity of time and resources. If one is attending a movie, then he or she can not be in class at the same time. Should they decide to go to the movies, classwork is the opportunity cost.
